List of top Biology Questions

How many mitotic divisions must occur in a cell of root tip to form 256 cells.
Diapedesis is
ADH acts on the
Adrenaline directly affects
Acoelus vertebrae in frog is
Which of the following is/are an angiospermic hydrophyte?
Amitosis is shown by
The type of placentation in which ovary is syncarpous unilocular and ovules on sutures is called?
The fruit of coconut is called as
What is the number of spinal nerves in frog?
Fixation of one molecule of $ CO_{2} $ through Calvin cycle requires
Acetabulum is present in
Miller performed experiment to prove abiogenic molecular evolution of life. Which molecule was not present in Miller's experiment?
According to the theory of mutation by Hugo de Vries
Which one of the following is not observed during prophase I stage of meiosis?
The nomenclature system used by Linnaeus indicated_____of the organism
E.coli cells having DNA radio labelled with $^{15}N$ were placed in culture medium containing non radioactive $N^{14}$ isotope for three generations. What will be the percentage of ratioactivity in DNA of the progeny?
Which one of the following are not strictly macromolecules although obtained in macromolecular fraction during cell content separation?
To induce feminising effect in cucurbits, which of the following combinations of plant growth regulators should be used?
Which of these include onlyautotrophs?
After double fertilization, the secondary nucleus gives rise to
According to starch-sugar conversion theory of stomatal movement, during stomatal opening
According to Oswald and Tippo's classification system. Kingdom Plantae is divided into
Polyembryony is observed in plants like Mango. Nucellar cells develop into the embryos. Which of the following is true?
Indicate the statement which is not correct?